Fordmods Logo

Put a EL V8 ECU into my EDV8 - buzzing relay on LPG 

 

Page 1 of 1 [ 5 posts ] 

 
 Post subject: Put a EL V8 ECU into my EDV8 - buzzing relay on LPG
Posted: Sat Feb 09, 2008 8:59 am 
Getting Side Ways
Offline
User avatar

Age: 50

Posts: 1093

Joined: 29th Nov 2004

Gallery: 15 images

Ride: BA Ford Fairlane V8

Location: Lower Hunter Valley
NSW, Australia

As part of my dash conversion on my ED V8 wagon, I had to put in a ECU from a DL LTD. My car has LPG and before I took out the original ECU, I recorded what wires the sprintgas gas ECU tapped into. When installing the later model DL V8 ECU, I connected the wires from the gas ECU.

The car fired up and runs on gas however there is a singing relay that is buzzing at a high frequency whenever the car is running on LPG. The buzzing is gone when its running on petrol though.

My question: Is there a different setting between EB-ED V8s and EF-EL V8s in terms of how the LPG ECU is programmed? I'm thinking that the buzzing relay may be a poor connection somewhere instead but I'm not entirely sure.

 

_________________

Interested in a fair go for the {DESCRIPTION} area of NSW?

Top
 Profile  
 
 
Posted: Sat Feb 09, 2008 6:18 pm 
Getting Side Ways
Offline
User avatar

Age: 53

Posts: 3763

Joined: 25th Nov 2004

Gallery: 6 images

Ride: EFII 5.8 NOS TerroristGhia

Power: 274 rwkw

Location: Sydney Australia
NSW, Australia

EB ED would be EECIV, and EF EL Would be EECV, so my guess is there is a difference in what the ECU's do and how they are pinned out
Brett

 

_________________

The Terrorist ED Retired due to RUST.
The TerrosistGhia, EF Ghia 351 EFI 5 Speed.
Millennium Falcon, Sleeper EL DOHC 6 Speed Manual EFI LPG
Member#1131
I didn't Vote for Multiculturalism, DID YOU!!!

Top
 Profile  
 
 
Posted: Sat Feb 09, 2008 8:24 pm 
Technical Contributor
Offline
User avatar

Age: 60

Posts: 5659

Joined: 14th Jan 2005

Gallery: 10 images

Ride: 96 XH/97 EL

Location: South Coast
NSW, Australia

Well you need to track the relay down - is it relay related to the LPG install (most likely)? AFAIK the only relays that come to mind with aftermarket mixer/converter LPG installs are for switching the O2 sensor output, fuel gauge input (if the cluster indicator is used for both), and shutting the injectors down on LPG.

 

_________________

96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl
97 EL Futura S/W: LPG, Alarm, LED int Lts, Trip Comp, F/Lane Dome Lt, Climate Ctrl, T5 Conversion

Top
 Profile  
 
 
Posted: Sat Feb 09, 2008 9:52 pm 
Getting Side Ways
Offline
User avatar

Age: 50

Posts: 1093

Joined: 29th Nov 2004

Gallery: 15 images

Ride: BA Ford Fairlane V8

Location: Lower Hunter Valley
NSW, Australia

I checked the AEB website to double check my wiring and it is 100% correct. I have 4 wires that intercept the o2 sensors(polarity correct), 2 yellow wires that intercept the fuel pump, TPS signal wire and a PIP sensor signal wire

I opened up the lpg ecu box and I found the buzzing relay. I also found a couple of potentiometers and a small jumper switch. I'm going to have to have another look and see if I can identify what the relay belongs to and get back.

This is the final step of a relatively easy dash conversion from ED to EF.

 

_________________

Interested in a fair go for the {DESCRIPTION} area of NSW?

Top
 Profile  
 
 
Posted: Sat Feb 09, 2008 10:52 pm 
Getting Side Ways
Offline
User avatar

Age: 50

Posts: 1093

Joined: 29th Nov 2004

Gallery: 15 images

Ride: BA Ford Fairlane V8

Location: Lower Hunter Valley
NSW, Australia

Also another point. When I went for a run yesterday while I was running on gas, the thing cut out, ie, it stopped humming and switched to petrol briefly before going back to gas.

EDIT: 2 wires from the LPG module intercept the ignition 12v wires from the salt & pepper plugs at the rear of the inlet manifold. These were the wrong way around and the relay was getting a reversed polarity. All fixed now. Cheers.

 

_________________

Interested in a fair go for the {DESCRIPTION} area of NSW?

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 5 posts ] 

Who is online

Users browsing this forum: No registered users and 18 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Tue Dec 24, 2024 1:03 am All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names